:root {
    --primary: #004aad;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    max-width: 1200px;
    margin: 50px auto 80px;
    padding: 0 20px;
}

.contact-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.08);
    padding: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
}

/* ===== INFO ===== */
.contact-info h3 {
    font-size: 20px;
    color: #004aad;
    margin-bottom: 18px;
}

.info-item {
    margin-bottom: 16px;
    font-size: 15px;
    color: #4b5563;
}

.info-item strong {
    display: block;
    color: #1f2937;
    margin-bottom: 4px;
}

/* ===== FORM ===== */
.contact-form h3 {
    font-size: 20px;
    color: #004aad;
    margin-bottom: 22px;
}

.form-group {
    margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    font-size: 15px;
    transition: 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #004aad;
    box-shadow: 0 0 0 3px rgba(0, 74, 173, 0.15);
}

.contact-form textarea {
    height: 130px;
    resize: none;
}

.contact-form button {
    margin-top: 10px;
    background: #004aad;
    color: #fff;
    border: none;
    padding: 14px 36px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.25s;
}

.contact-form button:hover {
    background: #003080;
    transform: translateY(-1px);
}

/* ===== MAP ===== */
.map {
    margin-top: 60px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.map iframe {
    width: 100%;
    height: 420px;
    border: 0;
}

/* ===================================================== */
/* ================= 320px (BASE MOBILE) =============== */

.contact-section {
    margin: 30px auto 60px;
    padding: 0 16px;
}

/* CARD */
.contact-card {
    padding: 24px;
}

/* GRID → 1 COLUMN */
.contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
}

/* INFO */
.contact-info h3,
.contact-form h3 {
    font-size: 18px;
}

/* FORM */
.contact-form input,
.contact-form textarea {
    font-size: 14px;
    padding: 12px 14px;
}

.contact-form textarea {
    height: 120px;
}

.contact-form button {
    width: 100%;
    padding: 12px;
}

/* MAP */
.map {
    margin-top: 40px;
}

.map iframe {
    height: 260px;
}

/* ================= 360px ============================== */
@media (min-width: 360px) {

    .contact-card {
        padding: 28px;
    }

    .map iframe {
        height: 300px;
    }
}

/* ================= 768px (TABLET) ===================== */
@media (min-width: 768px) {

    .contact-section {
        margin: 50px auto 80px;
    }

    .contact-card {
        padding: 40px;
    }

    /* ยัง 1 column แต่ spacing ดีขึ้น */
    .contact-grid {
        gap: 40px;
    }

    .contact-info h3,
    .contact-form h3 {
        font-size: 20px;
    }

    .map iframe {
        height: 380px;
    }
}

/* ================= 1024px (LAPTOP) ==================== */
@media (min-width: 1024px) {

    /* กลับเป็น 2 COLUMN */
    .contact-grid {
        grid-template-columns: 1fr 1.2fr;
        gap: 50px;
    }

    .contact-card {
        padding: 50px;
    }

    /* CENTER */
    .contact-section {
        max-width: 1100px;
    }

    .map iframe {
        height: 420px;
    }
}

/* ================= 1400px (DESKTOP XL) ================ */
@media (min-width: 1400px) {

    .contact-section {
        max-width: 1200px;
    }

    .contact-card {
        padding: 60px;
    }

    .contact-grid {
        gap: 60px;
    }

    .map iframe {
        height: 480px;
    }
}